Is 4 amps enough for cutting metal?

For thin sheet, rebar, bolts and occasional cuts, yes. The 4 amp motor and 11,000 RPM speed handle light work, but it will bog down in thick steel or long continuous cuts where a 6 amp or larger grinder keeps its speed.

How does it compare with a 6 or 7 amp grinder?

It is lighter and easier to hold overhead, but it has less torque and stalls sooner under load. Pick a higher-amp grinder if you cut thick metal often; pick this one for occasional jobs and lighter weight.

Does it take standard 4-1/2 inch discs?

Yes. It uses a 7/8 inch arbor, the common size for 4-1/2 inch cutting wheels and flap discs, so replacements are easy to find.

What comes in the box?

The grinder, two wheel guards, cutting wheels, flap discs, a side handle and a wrench.

Can left-handed users use it?

Yes. The rubber side handle mounts in two positions, so it can go on either side of the body.

Does it have variable speed?

No. It runs at a single 11,000 RPM no-load speed with a lock-off slide switch, so there is no dial to slow it for polishing or delicate work.

Where is the Lowe's LS1O5G4W 4-1/2 in. 4-Amp Angle Grinder cheapest?

At Lowe's, for $111.23, as of our latest check.

Lowe's LS1O5G4W 4-1/2 in. 4-Amp Angle Grinder

Best price now

$111.23at Lowe'sChecked Nov 2

Prices are checked against each store and labelled with when.

Visit Lowe's

Lowe's LS1O5G4W 4-1/2 in. 4-Amp Angle Grinder

Best price now

$111.23at Lowe'sChecked Nov 2

Prices are checked against each store and labelled with when.

Visit Lowe's

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Price facts

Last seen at $111.23 at Lowe's on Nov 2.

Our take on the Lowe's LS1O5G4W 4-1/2 in. 4-Amp Angle Grinder

The Lowe's LS1O5G4W is a corded 4-1/2 inch angle grinder with a 4 amp motor that spins at 11,000 RPM no-load. It weighs about 3.7 lb, so it is lighter than most 4-1/2 inch grinders, which makes overhead and one-handed work easier. It ships with two guards, cutting wheels, flap discs, a two-position side handle and a wrench, so it is ready to cut and grind out of the box. The trade-off is power: at 4 amps it is weaker than the 6 to 7.5 amp grinders that dominate this size class, so it suits light metal, wood and occasional masonry work rather than heavy daily cutting.

Best forHomeowners doing occasional metal or masonry cuttingLight grinding and rust or weld cleanupOverhead or one-handed work where low weight mattersBuyers who want discs and guards included

Pros

Light 3.7 lb body is easy to control
11,000 RPM no-load speed matches larger grinders
Two-position side handle works for left- or right-handed users
Lock-off slide switch and raised spindle lock for safer disc changes
Ships with two guards, cutting wheels, flap discs and a wrench
Universal 7/8 inch arbor takes common discs

Cons

4 amp motor is weak for heavy or continuous cutting
No variable speed or soft start
Corded, so no battery freedom
Bundled discs are basic and wear quickly

Lowe's LS1O5G4W 4-1/2 in. 4-Amp Angle Grinder prices at every store

Lowe'sNew
Availability unknown
$111.23Checked Nov 2
Visit Lowe's

Lowe's LS1O5G4W 4-1/2 in. 4-Amp Angle Grinder price history

Lowest price we've seen: $111.23 on Nov 2 at Lowe's. Tracked across 1 store since Nov 2.

From Lowe's

Corded 4-1/2 inch angle grinder for metal and masonry cutting and grinding
4 amp motor with max 500W output and 11000 RPM no-load speed
Compact 3.7 lb body reduces fatigue during long use
Two wheel guards, lock-off slide switch and raised spindle lock for safe disc changes
Non-slip rubber two-position side handle for left- or right-handed use
Universal 7/8 inch arbor

Guarantee: Best Price Guaranteed: Lowe's will match a lower price on an exact item; some exclusions apply.
Returns: Free returns: return in store or ship it back for free; eligibility rules apply.
Shipping: Sold and shipped by WILDEROSE SILANYA INC; marketplace items are not eligible for Lowe's offers.
In the box: Grinder, Two guards, Cutting wheels, Flap discs, Side handle, Wrench

About the Lowe's LS1O5G4W 4-1/2 in. 4-Amp Angle Grinder

This is a corded 4-1/2 inch angle grinder for cutting and grinding metal and masonry. Its 4 amp motor delivers up to 500W of output and runs at 11000 RPM with no load. The body weighs 3.7 lb, which helps reduce fatigue during long use.

A lock-off slide switch and a raised spindle lock help with safe disc changes. Two wheel guards are included. The non-slip rubber side handle has two positions, so it can be used left- or right-handed. The arbor is a universal 7/8 inch.

Type: Corded angle grinder
Disc size: 4-1/2 in.
Motor: 4 amp, max 500W output
No-load speed: 11000 RPM
Weight: 3.7 lb
Arbor: Universal 7/8 in.
Handle: Non-slip rubber side handle, two positions
Safety features: Lock-off slide switch, raised spindle lock, two wheel guards
Use: Cutting and grinding metal and masonry
In the box: Grinder, two guards, cutting wheels, flap discs, side handle, wrench

Specifications

Package Quantity: 7
CA Residents: Prop 65 Warning(s): false

Questions and answers

Is 4 amps enough for cutting metal?: For thin sheet, rebar, bolts and occasional cuts, yes. The 4 amp motor and 11,000 RPM speed handle light work, but it will bog down in thick steel or long continuous cuts where a 6 amp or larger grinder keeps its speed.
How does it compare with a 6 or 7 amp grinder?: It is lighter and easier to hold overhead, but it has less torque and stalls sooner under load. Pick a higher-amp grinder if you cut thick metal often; pick this one for occasional jobs and lighter weight.
Does it take standard 4-1/2 inch discs?: Yes. It uses a 7/8 inch arbor, the common size for 4-1/2 inch cutting wheels and flap discs, so replacements are easy to find.
What comes in the box?: The grinder, two wheel guards, cutting wheels, flap discs, a side handle and a wrench.
Can left-handed users use it?: Yes. The rubber side handle mounts in two positions, so it can go on either side of the body.
Does it have variable speed?: No. It runs at a single 11,000 RPM no-load speed with a lock-off slide switch, so there is no dial to slow it for polishing or delicate work.
Where is the Lowe's LS1O5G4W 4-1/2 in. 4-Amp Angle Grinder cheapest?: At Lowe's, for $111.23, as of our latest check.